A test method for nickel chloride content hexahydrate
1. A test method for the content of nickel chloride hexahydrate is characterized in that the test method includes the following steps: a: take 1 volume of the liquid to be tested with a pipette to 5 volume volume bottles, add 1 volume of concentrated nitric acid, and then add 2 volume of ethylene glycol, and then use pure water to fill 5 volume parts to obtain liquid A; b: Take 1 liquid to be tested into a 5-volume [...]